Home / 515,631,342.60-772,313,273.10-447,606,894.60

Finding the Fourth Proportional to 515,631,342.60, 772,313,273.10 and 447,606,894.60

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Solution

The fourth proportional to 515,631,342.60, 772,313,273.10 and 447,606,894.60 is: 670,426,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,631,342.60 : 772,313,273.10 = 447,606,894.60 : x
  2. Step 2: Convert to fraction form
    515,631,342.60/772,313,273.10 = 447,606,894.60/x
  3. Step 3: Cross multiply
    515,631,342.60x = 772,313,273.10 × 447,606,894.60
  4. Step 4: Simplify right side
    515,631,342.60x = 345,692,745,830,652,736
  5. Step 5: Solve for x
    x = 345,692,745,830,652,736/515,631,342.60
  6. Step 6: Final answer
    x = 670,426,169.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.